Marsh-Bellofram 121 Marsh Float & Thermostatic Model 12 1″Pipe 15Lb Maximum Operating Pressure, Capacity 575 Pounds Per Hour
Marsh float and thermostatic traps are recommended for: modulating pressures where widlely varying loads are present, and pressures vary from maximum to vacuum. They are a good choice for their ability to vent air at very low pressures, handle start up air loads, and operate against back pressure. The float & thermostatic trap is not a good choice for : resistance to hydraulic shock, damage from freezing, and ability to handle dirt. The Marsh 12 Float & thermostatic trap allows steam to enter from either side of the trap, and the condensate to discharge from the opposite side or the same side of the trap. The 12 cast iron trap has a maximum operating pressure of 15 psi and comes a brass mechanism and copper float. The number 12 is continuous drainage and is designed for low pressure steam mains. The 1″ 12 has a inlet to outlet width of 6-3/16″ for in and out opposite side, or, same side inlet to outlet center-to-center dimension of 3″, a height of 9″ and a weight of 9lbs.
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